頁籤選單縮合
題名 | A Novel Technique of Reliability Estimation for a Stochastic-Flow Computer System from QoS Perspective=以服務品質觀點評估隨機流量電腦網路之可靠度 |
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作者姓名(中文) | 林義貴; 張秉宸; | 書刊名 | 品質學報 |
卷期 | 20:2 2013.04[民102.04] |
頁次 | 頁217-232 |
分類號 | 494.56 |
關鍵詞 | 關鍵績效指標; 隨機流量電腦網路; 系統可靠度; 估計方法; 維修; Key performance index; KPI; Stochastic-flow computer system; SFCS; System reliability; Estimation; Maintenance; |
語文 | 英文(English) |
中文摘要 | 本研究由服務品質觀點,提出一套技術以評估隨機流量電腦網路之可靠度。在電腦網路中,傳輸邊(傳輸媒介)與節點(傳輸設備)皆可能因為失效、部分失效或維修等因素,而隨機提供不同狀態之容量。因此,一個由具有隨機狀態傳輸邊與節點組成之電腦網路,可視為隨機流量電腦網路。為了保證此隨機流量電腦網路提供良好的服務品質,應隨時採取維修動作來保證網路能提供一定的容量以滿足需求。故本研究提出一套演算法評估隨機流量電腦網路之可靠度,而此一可靠度可視為該網路的關鍵績效指標。基於此關鍵績效指標,網路管理者可分析系統狀態,並進一步採取敏感度分析,找出影響網路最關鍵的部分。 |
英文摘要 | From the quality of service (QoS) perspective, this paper proposes a stochastic-flow network model to estimate the capability of a computer system with considering both edges and nodes may fail. In such a system, edges (transmission media) and nodes (transmission facilities) have various capacities due to failure, partial failure, or maintenance. Thus, a computer system consisting of such edges and nodes also has several possible states and it is a so-called stochastic-flow network, namely stochastic-flow computer system (SFCS) herein. To guarantee that the SFCS keeps a good QoS, the maintenance action is taken when the SFCS falls to a specific state such that it cannot provide sufficient capacity to meet demand. An algorithm is developed to estimate the system reliability as a key performance index (KPI). Based on the KPI, the system supervisor can conduct the sensitive analysis to improve/investigate the most important part in a large SFCS. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。